Terminal Cleaning Protocol and Audit: The Discharge Sequence, the High-Touch Checklist, and What Each Audit Method Measures

Terminal cleaning is the full clean-and-disinfect of a patient room and its equipment after the patient is discharged or transferred, before the next patient is admitted. It is one of the few infection-prevention interventions that is entirely delivered by environmental services (EVS) and entirely audited by infection prevention and control (IPC) — which is exactly why it fails. This page is written for both sides of that handoff: the discharge sequence, the surfaces that must be on the list, the contact-time step that nothing in the standard audit toolkit actually measures, and an honest account of what direct observation, fluorescent marker, ATP bioluminescence and environmental culture each measure and where each misleads.

The authority for almost everything below is CDC’s Options for Evaluating Environmental Cleaning toolkit (Guh and Carling, December 2010, Division of Healthcare Quality Promotion, NCEZID), which ships with the CDC Environmental Checklist for Monitoring Terminal Cleaning and a Terminal Cleaning Worksheet, and CDC’s Guidelines for Environmental Infection Control in Health-Care Facilities (2003). Product-level requirements come from EPA, which registers hospital disinfectants under FIFRA and approves the label language that carries the contact time.

Terminal cleaning versus daily cleaning, and versus device reprocessing

Three distinct activities get conflated in policy documents, and each has a different standard behind it.

• Daily (occupied-room) cleaning happens while the patient is in the bed. It is constrained by the patient’s presence, their belongings, in-use equipment and lines, and it typically covers a reduced surface set.
• Terminal cleaning happens at discharge or transfer, with the room empty. Everything in the room is in scope, including surfaces that are physically unreachable during occupancy, and the room is normally not released for admission until the clean is complete.
• Device reprocessing is a separate discipline governed by the Spaulding classification, which sorts devices — not rooms — into critical, semi-critical and non-critical categories and assigns sterilization, high-level disinfection or low-level disinfection accordingly. See how the Spaulding classification assigns a reprocessing level to a device, and where endoscope reprocessing fails in practice.

The Spaulding boundary matters more than it looks. Environmental surfaces in a patient room are, in Spaulding terms, non-critical — they contact intact skin at most, and most contact nothing but hands. Spaulding therefore assigns them low-level disinfection with an EPA-registered hospital disinfectant, and then stops. It has nothing further to say about which surfaces, how often, in what order, or how you would know whether it happened. Terminal cleaning is precisely the part Spaulding does not cover: the process and the assurance, not the reprocessing level. A facility that has a well-run Spaulding programme for its scopes and instruments can still be failing its bed rails, and the two audits share no data.

The discharge-cleaning sequence

Order is not cosmetic. Every step below exists to stop something already cleaned from being recontaminated by something cleaned afterwards, and to stop the person doing the work from carrying contamination out of the room. Facility policy sets the specifics; the sequence logic below is the part that generalises.

1. Confirm the room’s precaution status before entering. A room vacated by a patient on transmission-based precautions — contact, droplet or airborne — may require different PPE, a different product, or a hold time before entry. A room vacated by an airborne-precautions patient must be left for the air-change interval that the room’s ventilation rate dictates before an unprotected person enters. This is the single most common sequencing error, because the precaution sign is often removed at discharge by whoever escorts the patient out.
2. Don PPE for the task and the precautions. Terminal cleaning is a splash-and-spray task at minimum. Where the previous occupant was on contact precautions, gown and gloves are the floor, not the ceiling. Doffing at the end is where self-contamination happens — see the donning and doffing sequence and the trained-observer role.
3. Remove and dispose before you clean. Linen, single-patient-use items, unused disposables that were stored in the room, sharps containers at fill line, suction canisters, and anything the previous patient touched that cannot be disinfected. Anything opened in a precautions room does not go back to stores. Removing first means you are not cleaning around obstacles and then re-touching them.
4. Clean before you disinfect. These are two operations, not one. Cleaning removes soil and organic load physically; disinfection kills what remains. Disinfectant applied over visible soil is inactivated by it and will not achieve its label claim. Where a product is a one-step cleaner-disinfectant, the label’s own directions define whether a separate pre-clean is required for soiled surfaces — read the label, not the brand.
5. Work high to low, and clean to dirty. Overhead and elevated surfaces before horizontal surfaces before floors, so that dislodged debris falls onto surfaces not yet cleaned. Within the room, the patient zone and low-touch surfaces before the toilet and bathroom fixtures — never the reverse, and never with the same cloth.
6. Apply the disinfectant so the surface is visibly wet for the entire label contact time. This is the step covered in its own section below, because it is the one that most reliably fails.
7. Change cloths and mop heads on a defined rule, not on appearance. A cloth returned to the bucket after wiping a surface re-inoculates the solution. Microfibre systems are normally single-use-per-surface-group or single-use-per-room by policy; the rule needs to be written down and auditable, because “when it looks dirty” is not a rule.
8. Treat shared and mobile equipment as part of the room. IV pumps, monitors, ventilators, workstations on wheels and portable imaging equipment move between rooms and belong to no one. Terminal cleaning fails at exactly this seam, because the equipment’s cleaning is often assigned to clinical staff and audited by nobody. Assign it explicitly in writing to a named role.
9. Doff PPE and perform hand hygiene before leaving.
10. Release the room only on a recorded completion. A terminal clean that is not recorded cannot be audited, and cannot be reconstructed after a transmission event.

The high-touch surface list — CDC’s actual checklist

CDC’s Environmental Checklist for Monitoring Terminal Cleaning names a specific set of priority sites, selected, in the toolkit’s own words, as the “sites most frequently contaminated and touched by patients and/or healthcare workers.” Reproduced below because most published high-touch lists are paraphrases and the paraphrases drift.

Priority sites, evaluated in every patient room

1. Bed rails / controls
2. Tray table
3. IV pole (grab area)
4. Call box / button
5. Telephone
6. Bedside table handle
7. Chair
8. Room sink
9. Room light switch
10. Room inner door knob
11. Bathroom inner door knob / plate
12. Bathroom light switch
13. Bathroom handrails by toilet
14. Bathroom sink
15. Toilet seat
16. Toilet flush handle
17. Toilet bedpan cleaner

Additional sites, evaluated where the equipment is present

1. IV pump control
2. Multi-module monitor controls
3. Multi-module monitor touch screen
4. Multi-module monitor cables
5. Ventilator control panel

Three details on this list that matter operationally.

First, each site is scored on three states, not two: Cleaned, Not Cleaned, and Not Present in Room. The third state is what keeps the denominator honest. A room without a ventilator is not a room that failed its ventilator control panel, and an audit tool that cannot express “not present” will either undercount performance or quietly drop rooms from the sample.

Second, the list deliberately includes the grab area of the IV pole and the cables of the monitor, not the pole and the monitor as objects. Terminal cleaning is audited at the level of the surface a hand actually lands on. An EVS competency that says “clean the monitor” and an audit that marks the monitor cables will disagree forever.

Third, the toolkit is explicit that objective monitoring of certain high-touch surfaces beyond the checklist — it names the privacy curtain separating patient beds — is not well defined. If your facility monitors curtains, that is a local extension, and it should be reported separately rather than folded into a score that is meant to be comparable to the checklist.

For scoring, the toolkit groups the checklist surfaces into five categories: High Touch I, High Touch II, High Touch III, Bathroom Surfaces and Equipment Surfaces. The reason given is empirical and useful — cleaning practice within an institution “is more likely to vary between types of objects than by patient units.” An aggregate score reported by ward will hide a systematic bathroom failure; a score reported by object category will find it.

Contact time (wet time): the step that fails most, and that no audit method measures

A hospital disinfectant is a pesticide registered with EPA, and its efficacy claims are approved claims on an approved label. EPA’s own instruction to users is unambiguous:

“The contact time is the time the product must remain on the surface for it to be effective. The surface should be visibly wet for the entire contact time. This may mean the product needs to be reapplied. For example, if the product label has a contact time of 10 minutes for a particular pathogen, the surface should remain visibly wet for at least 10 minutes after application of the product. If after 5 minutes the surface is not visibly wet, more product should be applied to the surface.”

That is the whole failure mode. A wipe rated for a four-minute or ten-minute claim against a given organism does not deliver that claim if the surface is dry in ninety seconds — and on a warm, hard, non-porous surface in a ventilated room, ninety seconds is realistic. The step is not skipped; it is performed, visibly, and still fails, which is why it survives observation-based auditing. EPA’s own contact-time conversion table exists precisely because short claims are expressed as decimal minutes on labels: 0.17 minutes is 10 seconds, 0.25 minutes is 15 seconds, 0.5 minutes is 30 seconds, 1.5 minutes is 90 seconds.

And here is the part that most EVS programmes have not internalised. CDC states plainly, in the toolkit that defines the monitoring methods, that

“there is no standard method for measuring actual cleanliness of surfaces or the achievement of certain cleaning parameters (e.g., adequate contact time of disinfectant) or for defining the level of microbial contamination that correlates with good or poor environmental hygienic practices.”

Read that against the four audit methods below and the consequence is stark: none of them measures contact time. A fluorescent marker is removed by a single dry pass. An ATP swab reads organic residue after the fact. A culture reads organisms without knowing how long the product sat. A room can score 100% on any of them while every surface in it dried in a minute against a ten-minute claim. Contact-time compliance has to be assured through product selection, application method, competency assessment and direct observation of technique — it cannot be inferred from an audit score, and a programme that treats a high TDC score as evidence of contact-time compliance has drawn a conclusion its instrument cannot support.

Practical contact-time controls that do work

• Choose the product against the realistic wet time, not the shortest claim on the label. A label carries different contact times for different organisms; the claim you are relying on is the one for the organism you care about. A product whose C. difficile sporicidal claim is ten minutes is a ten-minute product in a C. difficile room regardless of what its bactericidal claim says.
• Specify reapplication as a step, not a contingency. If the required wet time exceeds the observed dry time, the procedure needs a written second application at a defined interval, not an instruction to “keep it wet.”
• Verify the product on the cart is the product on the list. EPA registration numbers have two or three parts. A two-part number (for example 12345-12) is a primary registration and is what appears on EPA’s lists. A three-part number (12345-12-2567) is a supplemental distributor product — same chemical composition and efficacy, sold under a different brand, and not itself listed. So a product absent from a List is not necessarily unqualified; check whether its first two number segments match a listed primary registration. This is the single most common error in EVS product audits.
• Match the List to the organism. EPA maintains separate lists by pathogen claim: List A (sterilants), List B (M. tuberculosis), List G (norovirus), List H (MRSA and/or VRE), List J (medical waste treatment), List K (Clostridium difficile spores), List L (Ebola), List M (avian influenza), List N (SARS-CoV-2), List O (RHDV2), List P (Candida auris), List Q (emerging viral pathogens) and List S (bloodborne pathogens: HIV, HBV, HCV). Note that Lists C, D, E and F have been retired and consolidated into List S — a policy or SOP that still cites List D or List E is out of date and should be updated. EPA is explicit that if a label does not include disinfection directions for a given pathogen, the Agency has not reviewed data on whether the product is safe and effective used that way.

The four audit methods, and what each actually measures

These methods are not equivalent and are not interchangeable. They answer different questions, and a programme that swaps one for another mid-stream has broken its own trend line. The distinctions below are drawn from Appendix B of the CDC toolkit.

Direct practice observation

Measures: what the EVS staff member actually does — technique, sequence, product handling, protocol compliance. It is the only one of the four that can see the contact-time step at all.

Misleads when: the observer is recognised. CDC describes covert monitoring as conceptually feasible and notes it has been used to evaluate and improve ICU environmental hygiene in one hospital, but flags two real limits: the logistics of sustaining covert observation outside a research setting, and “the complexity of monitoring cleaning practice in individual patient rooms without the evaluator being recognised as such,” which it calls a difficult confounding issue. Overt observation measures performance-under-observation, which is not the quantity of interest.

Fluorescent marker

Measures: whether a surface was wiped. A gel, powder or lotion is applied to designated high-touch objects before the clean and inspected under UV afterwards; removal of the mark means physical contact occurred. CDC notes that fluorescent gel is the form suited to monitoring — it dries transparent, resists abrasion, and several studies demonstrate its accuracy — whereas powder is overtly visible and easily disturbed, and lotion is overtly visible and hard to remove once air-dried, with little or no published experience in monitoring use.

Misleads when: you read it as a measure of disinfection. In CDC’s words, the markers “are all designed to indicate physical removal of an applied substance,” so “surfaces that are effectively disinfected but less effectively cleaned may be more likely flagged as failing to meet a quality standard using one of these markers than one of the culture techniques.” It also cannot distinguish a dry pass from a correctly wetted application. It says the surface was touched. That is all it says — and given that missed surfaces are a real and common failure, that is a genuinely useful thing to say.

ATP bioluminescence

Measures: organic residue. A standardised swab samples a defined surface area and a handheld luminometer runs a luciferase assay; the result is reported in relative light units (RLU). Total ATP is quantified — “both microbial and non-microbial.” The method came to healthcare from food-preparation hygiene, where it has been in use for more than thirty years.

Misleads when: you treat RLU as a microbial count, or compare readings across instruments. Both errors are common and both are addressed directly in the CDC toolkit.

• Do not adopt a universal RLU pass threshold. There is not one. CDC states that ATP “readout scales vary more than 10-fold and sensitivity varies between commercially available systems.” A pass threshold is therefore a property of a specific manufacturer’s instrument and swab chemistry, not a property of clean. An RLU value from one vendor’s system is not comparable to the same number from another’s, which means benchmarking your RLU results against another facility’s, or against a number found in a journal article using different hardware, is not a valid comparison. It also means a change of instrument resets your baseline — treat it as a new programme, not a continuation.
• Correlation with microbial burden is loose, and directionally interpretable only at the extremes. CDC: very low readings are typically associated with low aerobic colony counts (ACCs); very high readings “may represent either a viable bioburden, organic debris including dead bacteria or a combination of both.” The lack of correlation is partly structural — the assay measures organic debris as well as viable bacteria. Because a large proportion of surface ATP is non-microbial in origin, ATP shares the fluorescent marker’s bias: surfaces that are effectively disinfected but less effectively cleaned are more likely to be flagged as failing than they would be under a culture method.
• Bleach quenches the signal. CDC notes that high concentrations of bleach may quench the ATP bioluminescence reaction and reduce the signal, with further research needed. The operational instruction is concrete: if a bleach-based disinfectant is used, the surface must be dry before the ATP tool is used. Swabbing a still-wet bleached surface produces a falsely reassuring low reading.

Environmental culture (swab cultures and agar slide cultures)

Measures: organisms. Swab cultures can identify specific target pathogens; agar-coated slides quantify aerobic colony counts per square centimetre. This is the only family of methods that answers “was there a viable organism on this surface,” which is the question everyone thinks they are asking.

Misleads when: you need a result this week, or you need it from an awkward surface. CDC’s stated limits are practical rather than theoretical: for swab cultures, the cost of processing including isolate identification, the delay in analysing results, and limited feasibility across multiple surfaces in multiple rooms as part of ongoing monitoring; for agar slides, difficulty on anything other than large flat surfaces, and the observation that no study to date has established whether objects with high ACCs were poorly cleaned or simply overlooked. Both share a deeper problem: to convert a post-clean count into a statement about cleaning practice, you need the pre-cleaning level of contamination for each object evaluated. Without a baseline, a low count may mean the surface was cleaned well or may mean it was never dirty. Culture is also selective — it recovers what the medium and incubation conditions permit, not everything present.

Choosing between them

CDC’s own comparison matrix scores the methods on ease of use, whether they identify pathogens, whether they are useful for individual teaching, whether they directly evaluate cleaning, and published use in programmatic improvement. The published-use column is the most decisive single figure in the toolkit: at the time of publication, fluorescent gel had documented programmatic use in 49 hospitals, the ATP system in 2, direct practice observation in 1, and swab cultures in 1.

In practice most programmes pair a process method with an outcome method: fluorescent marker to find missed surfaces and drive non-punitive individual feedback, plus culture on a narrow, targeted basis during an outbreak investigation or when validating a change of product. ATP sits between them and earns its place when a facility wants a same-shift quantitative number for education, provided the RLU non-comparability above is understood and written into the procedure.

Running the audit: CDC’s Level I and Level II programme structure

The toolkit describes two programme tiers, and the distinction is about whether monitoring is objective.

Level I — the basic programme

• An IPC-based programme (infection preventionist or hospital epidemiologist), internally coordinated and maintained through environmental services management-level participation. CDC frames the goal explicitly as “a joint (IPC/ES), team effort during planning, implementation and ongoing follow-up phases.”
• A hospital-specific, jointly agreed definition of institutional expectations, consistent with the CDC standard and the checklist.
• Written, clearly defined responsibilities for ES staff and other hospital personnel for cleaning high-touch surfaces — the toolkit gives equipment in ICU rooms as the example, which is the shared-equipment seam described earlier.
• Structured education of ES staff, with the proportion of staff participating monitored as a metric in its own right.
• Monitoring measures developed by the IPC/ES team, which may include competency evaluation of ES staff by ES management, IPC staff, or — CDC’s stated preference — both.
• Terminal-cleaning improvement as a standing agenda item for the Infection Control Committee, with the feasibility of moving to Level II discussed and documented in the minutes.
• Results reported to the ICC and facility leadership.

Level II — the objective-monitoring programme

Level II adds measurement. CDC advises that some hospitals should implement Level II from the start, “particularly those with increased rates of infection caused by healthcare acquired pathogens (e.g., high Clostridium difficile infection rate),” and that hospitals which have successfully achieved Level I should advance to Level II.

• A baseline evaluation before the intervention, conducted covertly or in conjunction with ES staff, using one or more of the objective methods above.
• Ongoing monitoring at least three times a year, sized to detect a 10-20% change in performance.
• Aggregate Thoroughness of Disinfection Cleaning (TDC) scores, calculated across rooms and reported by the five object categories rather than only in the aggregate.
• Feedback into education after each evaluation cycle, explicitly non-punitive. CDC goes further than “non-punitive” as a slogan: it recommends that baseline results be incorporated into the educational activity in a non-punitive manner, and that staff be shown results emphasising — or possibly exclusively showing — the objects that were most thoroughly cleaned.
• Independence of the auditor. This is the governance rule most often broken. CDC: monitoring must be performed by hospital epidemiologists, infection preventionists or their designees “who are not part of the actual ES cleaning program,” because that is what assures the validity of the information collected. EVS auditing its own thoroughness score is not a Level II programme.
• Guard against a Hawthorne effect — CDC warns that neither the system itself (the fluorescent marker) nor its use (pre-cleaning cultures or ATP measurements) should induce one.
• Results to the ICC and facility leadership, and optionally onward to the state health department through the state prevention collaborative coordinator, by various mechanisms including an NHSN template, depending on infrastructure.

How many rooms to sample

The toolkit gives concrete sampling arithmetic, which is the part most locally-written audit SOPs omit.

• Baseline: all available checklist surfaces in a 10-15% sample of rooms.
• Once a thoroughness-of-cleaning rate above 80% is achieved: the sample can be reduced to all available surfaces in a 5% sample of rooms per evaluation cycle, unless practice deteriorates.
• Hospitals with fewer than 150 beds: all available checklist surfaces in a minimum of 15 rooms, for both baseline and ongoing evaluation.
• CDC’s reasoning on precision is worth repeating: detecting a small fluctuation (a 10% relative change) accurately would be highly labour-intensive, whereas a meaningful change (roughly 20% relative) can be detected without evaluating a substantial number of surfaces. Design the sample for the change you would act on.

Where terminal-cleaning programmes actually fail

1. Contact time, invisibly. Performed, observed, recorded, and still short of the label claim — and undetectable by any of the four audit methods.
2. Shared and mobile equipment with no named owner. The checklist’s IV pump controls, monitor touch screens, monitor cables and ventilator control panels sit in the gap between EVS and clinical staff. If the responsibility is not written down, the audit finds it and nobody owns the corrective action.
3. Auditing your own work. A TDC score produced by ES management is not the measurement CDC describes.
4. Reporting one aggregate number. Practice varies by object type more than by unit; a single hospital-wide percentage hides the bathroom.
5. Treating the score as the goal. Fluorescent-marker scores rise quickly once staff learn which objects are marked. Rotate the marked object set and re-baseline, or the number will improve while cleaning does not.
6. Comparing RLU values across systems or against published figures. See above; the scales differ by more than tenfold.
7. Discharging the room before the air changes. After an airborne-precautions occupant, entry time is set by the ventilation rate, not by the bed-management queue.
8. Product-list drift. An SOP citing retired EPA Lists C, D, E or F, or a cart product whose three-part registration number was never traced back to a listed primary registration.

How terminal cleaning connects to the rest of the infection-prevention programme

Environmental hygiene is one control among several, and its value shows up in other people’s numbers. The CDC toolkit’s framing is that transmission of many healthcare-acquired pathogens is related to contamination of near-patient surfaces and equipment, which is why it recommends all hospitals develop programmes to optimise the thoroughness of high-touch surface cleaning as part of terminal room cleaning at discharge or transfer.

• Enhanced barrier precautions and transmission-based precautions determine the PPE, the product and the sequence for a given room, and are the input to step 1 of the discharge sequence.
• Device-associated infection surveillance — CLABSI and CAUTI under NHSN definitions — is where environmental contributions show up as outcome data, though attributing a specific infection to a specific cleaning failure is rarely possible.
• Spaulding classification and medical device reprocessing govern the devices in the room; terminal cleaning governs the room around them.
• Infection control risk assessment for construction covers the other major environmental exposure pathway, and its containment and terminal-clean requirements at project close are directly analogous.
• Antimicrobial stewardship reduces the selection pressure that produces the organisms terminal cleaning is trying to remove; the two programmes usually report into the same committee.
• Full cluster context: patient safety and infection prevention.

Frequently asked questions

What is terminal cleaning in a hospital?

The complete clean and disinfection of a patient room, its bathroom and its equipment after the patient is discharged or transferred, performed with the room empty and completed before the next patient is admitted. It differs from daily cleaning in that every surface is in scope, including those unreachable while the bed is occupied.

How long should terminal cleaning take?

There is no national standard duration, and any figure quoted as one is a local productivity target rather than a requirement. The floor is set by arithmetic, not by policy: the room cannot be released before the longest applicable label contact time has elapsed on the last surface treated, plus the time to physically clean every surface on the list, plus — after an airborne-precautions occupant — the air-change interval before entry. Set the target from that calculation, not from a benchmark.

What is the difference between cleaning and disinfection?

Cleaning physically removes soil, organic matter and a portion of the microbial load, usually with detergent and friction. Disinfection kills or inactivates remaining organisms with a chemical agent. Disinfection applied over visible soil is unreliable, because organic load inactivates many disinfectant chemistries — which is why the sequence is clean first, disinfect second, even when a single one-step product is used for both.

Is there a standard ATP RLU pass threshold?

No. CDC states that ATP readout scales vary more than tenfold and that sensitivity varies between commercially available systems, so a pass threshold belongs to a specific instrument and swab chemistry rather than to the concept of a clean surface. Use the threshold your manufacturer validates for your instrument, document which instrument produced each result, and do not compare your RLU values against another facility’s or against published figures generated on different hardware. Changing instruments requires a new baseline.

Does a fluorescent marker prove a surface was disinfected?

No. It proves the surface was physically wiped, because the marker is designed to indicate physical removal of an applied substance. CDC notes the corollary explicitly: a surface that was effectively disinfected but less effectively cleaned is more likely to be flagged as failing under a fluorescent marker than under a culture method. The marker is excellent at finding surfaces nobody touched, which is a real and common failure — it is simply not a disinfection assay.

How often should environmental cleaning be audited?

For a CDC Level II programme, objective monitoring should be performed at least three times a year, following a baseline evaluation, with the sample sized to detect a 10-20% change in performance. Baseline covers all checklist surfaces in a 10-15% sample of rooms; once thoroughness exceeds 80%, that can drop to a 5% sample per cycle. Hospitals under 150 beds should cover a minimum of 15 rooms.

Who should perform the audit — EVS or infection prevention?

Infection prevention. CDC is specific that monitoring must be carried out by hospital epidemiologists, infection preventionists or their designees who are not part of the ES cleaning programme, because auditor independence is what assures the validity of the data. EVS management remains a full partner in designing the programme, educating staff and acting on results — but not in producing the score.

What does the disinfectant contact time mean, and what happens if the surface dries early?

Contact time is the period the product must remain on the surface, visibly wet, for its label claim to hold. If the surface dries before that period elapses, the claim is not achieved and the product must be reapplied. EPA’s worked example: for a ten-minute contact time, if the surface is not visibly wet at five minutes, more product should be applied.

Which EPA list should we use for C. difficile?

List K, EPA’s registered antimicrobial products effective against Clostridium difficile spores. Note that a product may carry different contact times for different claims on the same label — the sporicidal contact time is the one that governs a C. difficile room. Also check registration numbers carefully: three-part numbers are supplemental distributor products which are equivalent to, but not separately listed alongside, their two-part primary registration.

Should we add UV disinfection or hydrogen peroxide vapour?

These are adjuncts, not substitutes. Every no-touch technology requires the manual clean to have happened first, because soil and organic debris shield organisms from both UV and vapour just as they inactivate liquid disinfectants, and shadowed surfaces receive no UV dose at all. The audit question for an adjunct is therefore the same as for the manual process, plus a cycle-verification question specific to the device. A facility whose fluorescent-marker scores are poor will not fix them by buying a UV device; it will add cost to an unreliable process.

Source note on availability

The CDC pages cited here return HTTP 403 to automated retrieval, which is a fetching restriction rather than a content change. The material above was read from CDC’s own toolkit PDFs — Options for Evaluating Environmental Cleaning (December 2010) and the CDC Environmental Checklist for Monitoring Terminal Cleaning — as archived by the independent RestoredCDC.org mirror, which reproduces the CDC documents unaltered. Readers should treat cdc.gov as the authoritative source and verify the current version of the toolkit there, particularly given that CDC has an active revision of the 2007 Isolation Precautions Guideline in progress. The EPA material was verified directly against EPA’s Selected EPA-Registered Disinfectants page. The more detailed and fully referenced discussion of the monitoring methods is Carling PC and Bartley JM, “Evaluating Hygienic Cleaning in Healthcare Settings,” in the June 2010 supplement to the American Journal of Infection Control, which the CDC toolkit itself directs readers to.